Apparatus for progressively advancing workpieces through working zones



3 Sheets-Sheet 1 P 1949- J- s. .KAMBORIAN I APPARATUS FOR PROGRESSIVELYADVANCING WORKPIECES THROUGH WORKING ZONES Original Filed June 17, 1944v [ra e/14 I M S/fi'marwavn April 19, 1949. 1 J. 5. KAM BORIAN 2,467,387

APPARATUS FOR PHOGRESSIVELY ADVANCING Y WORKPIECES THROUGH WORKING ZONESOriginal Fi'led June 1'7, 944

3 Sheets-Sheet 2 APPARATUS FOR PROGRESSIVELY ADVANCING April 19, 1949- OJ- 5. KAMBORIAN 2,467,387

. WORKPIECES THROUGH WORKING ZONES Original Filed June 17, 1944 3Sheets-Sheet 3 J0 J W $3 -Zizuerzzfan Maj zik wa/zpv Patented Apr. 19,1949 APPARATUS FOR PROGRESSIVELY ADVANC- ING WOBKPIECES THROUGH WORKINGZONES Jacob s. Kamborian, West Newton, Mass.

Original application June 1'7, 1844, Serial No. v540,868. Divided andthis application October 16, 1948, Serial No. 208,810

18 Claims. (01. 12-1) This invention pertains to apparatus forprogressively advancing a work piece through a working zone while it isbeing acted upon by appropriate agencies, and in particular while thework is subjected to tension in a direction transverse to its generalpath of travel, the present application being a division of applicationfor Letters Patent Serial No. 540,868, filed June 17, 1944. While ofbroader utility, for example for use in shoe lasting or other machineswhich do not employ cement or other adhesive, the invention is hereinillustrated by way of example as embodied in a machine for applyingadhesive to the lower marginal portion of a lasted shoe upper and alsoto a sole element of the shoe, and wherein one of the'elements betweenwhich the work is gripped is a cement-applying nozzle.

One object of the invention is to provide workadvancing means operativeto stress the work transversely of its general direction of travel as itpasses through the working zone. A further object is to provide novelmeans operative progressively and uninterruptedly to advance a piece ofsheet material, such, for example, as the margin of a shoe upper whilethe material is held transversely taut and in contact with an abutmentmember either stationary or movable. A further object is to providework-advancing means so combined with a rotatable work-guiding elementthat the work-engaging surfaces of the advancing and guiding elementsmay be very closely juxtaposed. A further oblect is to provide a novelwork-advancing roll having a resiliently yieldable work-contacting face.

Other and further objects and advantages of the invention will bepointed out in the following more detailed description and by referenceto the accompanying drawings wherein Fig. 1 is a side elevation, partlyin vertical section, illustrating an adhesive-applying machine embodyingthe present invention;

Fig. 2 is a fragmentary front elevation of the apparatus of Fig. 1;

Fig. 3 is a fragmentary elevation of the lefthand side of the machine,to large scale, and partly in vertical section, showing the parts inreadiness for the introduction of the work piece;

Fig. 4 is a view similar to Fig. 3 but showing the parts in theoperative position of applying cement to a shoe: and

Fig. 5 is a fragmentary vertical section to large scale, showing detailsof the work-guiding and feeding means.

Referring to the drawings, the numeral I designates a hollow base orcolumn having a top 2 member 2 which may or may not be integral with thevertical side walls of thebase, the base constituting a protective casefor certain operative parts and having within it a chamber 8, preferablyhaving a door aperture at i normally closed by a hinged door 5 having alocking handle 6. A rigid frame II8 is-mounted on or integral with part2. This machine frame H8 is provided with horizontal guideways for aslide member IIt which supports the applicator nozzle 80.

The applicator nozzle is supplied with adhesive through a pipe 84leading from a pressureregulating device 85 having the regulating handle86, the fluid being supplied to the pressure regulator by means of apipe 88 to which the fluid is delivered from the container 4| by a pump88 housedwithin the base I.

The slide H8 is actuated by a treadle (not shown) which moves a verticalrod 0 which is connected at its upper end to one arm of a bell-cranklever (Fig. 1), the other arm I20 of which is pivotally connected to theslide H6.

The slide is urged rearwardly by a spring II'I",

one end of which engages a collar on the treadle rod H9, and the otherend of which rests upon a portion of the machine base.

The motor I08 is mounted within a chamber in the frame I I3, and has apower delivery shaft I08 (Fig. 1) provided with a pulley I2I whichreceives a belt I22, which drives a pulley I23 fixed to shaft I24 (Fig.5) mounted in bearings I25 carried by the machine frame. This shaft I24is inclined downwardly and forwardly, as shown in Figs. 1 and-5, and isprovided at its forward end with a roll I26 having a rim I21, preferablyof some yieldable material, such as rubber or a rubber composition,synthetic rubber or the like. Preferably this rim I2I has a helical riband is of frusto-conical shape, the inclination of the axis of the rollI26 being such that the work-engaging element of the roll, that is tosay that portion of the roll which contacts the work, lies in a verticalplane T, T (Fig. 5) and parallel to the vertical work-engaging face 5|of the applicator nozzle 30. The shaft I24 is preferably tubular, andwithin this shaft is arranged a support I28 which is keyed at I29 to arear bearing I25 so that the support I28 can not rotate. A spring I30 issecured to the rear side of bearing I25" and bears against the rear endof the support I28, so that the support is permitted to yieldrearwardly. The forward end of the support I28 is bifurcated to provide.vertically spaced arms I8I, and between these armsis mounted awork-engaging guide roll I82 fixed in the arms ISI.

mounted to turn freely on a vertical pin I33 The diameter of the rollI32 is such that its work-contacting surface is substantially in theplane of the fan ii of the nozzle when the work is being operated upon.

When the margin W (Fig. 4) of a shoe upper U is gripped between theperipheral surface of the roll I26 and the applicator nozzle 30, asillustrated in Fig. 4, the rotation of the roll with its helical ribimparts a feeding or advance motion to the shoe, relatively to thenozzle, and at the same time creates a distinct upward pull or drag onthe material of the upper, tending to draw it snugly about the last-L.Upward motion of l the shoe as a whole is opposed by the applicatornozzle 30, whose lower surface engages the exposed surface of the solemember S. As illustrated in Fig. 4, the mechanism is being used for theapplication of cement to the inner surface of the wrapper and to themiddle sole of a force-lasted shoe, but obviously it may be Similarlyused for applying cement to the inner surface of the upper and to theinsole of a shoe of more conventional type.

I claim:

1. In a shoe-working machine in combination, members operative to engageopposite sides respectivelyof the marginal portion of a shoe upper, oneof said members having a normally stationary work-engaging surface andthe other being a frusto-conical roll having a helical rib on itsconical surface, the axis of the roll being so arranged that thework-engaging portion of the roll is substantially parallel to thework-engaging surface of the other of said members, means for rotatingthe roll, the roll having a hollow shaft, work-guide means, and asupport for the work-guide means passing through said shaft.

atively engages the work being parallel to the work-contacting face ofthe abutment, the beveled peripheral face of the work-advancing rollerbeing of resiliently yieldable material and having a circumferential,helical rib, the workcontacting face of the abutment member being smoothand substantially rigid, and means for rotating the work-advancingroller.

3. In apparatus wherein a work piece is advanced uninterruptedly througha working zone, means for advancing the work piece comprising partsoperative to engage opposite sides, respectively, of the work piece, oneof said parts being an abutment member having a substantially flatwork-contacting face and the other of said parts being a rotatablework-advancing roller, the roller being of frusto-conical shape having aperipheral work-contacting face, that element of said peripheral surfacewhich at any time operatively engages the work being parallel to thework-contacting face of the abutment, the beveled peripheral face of thework-advancing roller being of resiliently yieldable material, and meansfor rotating the roller.

4. In apparatus wherein a work piece is advanced uninterruptedly througha working zone,

means for advancing the work piece comprising parts operative to engageopposite sides, respectively, of the work piece, one of said parts beingan abutment member and the other of said parts being a rotatablework-engaging roll having a peripheral work-contacting face, a rotatableshaft on which the work-advancing roller is mounted, and means forturning the shaft, the shaft being tubular, and a part within the shaftcarrying a support for a guide roll arranged closely adjacent to one endface of the work-advancing roller. 5. In apparatus wherein a work pieceis advanced uninterruptedly through a working zone, means for advancingthe work piece comprising tively, of the work piece, one of said partsbeing a normally stationary abutment member having a substantially flatwork-contacting surface and the other of said parts being a rotatableworkadvancing roller having a beveled work-engaging peripheral face, arotatableshaft and means for turning it, the axis ofthe shaft beinginclined to the plane of the flat work-contacting surface of theabutment member at substantially the same angle as that between thebeveled peripheral surface of the work-advancing roller and the axis ofthe latter, the work-advancing roller being fixed to one end of theshaft and having within it a chamber open at the small end of theroller, 8. guide roll arranged to turn about a fixed axis parallel tothe work-contacting face of the abutment member, and means within thechamber in the work-advancing roller for supporting the guide roll.

6. In apparatus wherein a work piece is advanced uninterruptedly througha working zone, means for advancing the work piece comprising partsoperative to engage opposite sides, respectively, of the work piece, oneof said parts being an abutment member having a substantially flatwork-contacting surface and the other of said parts being a rotatablework-advancing roller, the roller being of frusto-conical shape having aperipheral work-contacting surface, that element of said peripheralsurface which at any time operatively engages the work being parallel tothe work-contacting faceof the abutment, a work-guiding roll arrangedadjacent to the smaller end of the work-advancing roller, the guide rollturning about an axis parallel to that element of the work-advancingroller which at any time operatively engages the work, the diameter ofthe guide roll being such that its outermost peripheral element isnormally substantially in'the plane of the work-contacting face of theabutment member.

7. In apparatus wherein a work piece is 'advanced uninterruptedlythrough a working zone, means for advancing the work piece comprisingparts operative to engage opposite sides, respectively, of the workpiece, one of said parts being a normally stationary abutment member andthe other of said parts being a rotatable workadvancing roller, theroller being of frustoconical shape having a peripheral work-contactingsurface, a work-guiding'element disposed adjacent to the smaller end ofthe work-advancing roller, and means so supporting said guide elementthat it may yield resiliently axially of the workadvancing roller inresponse to pressure of the work. 8. In apparatus wherein a work pieceis advanced uninterruptedly through a working zone, means for advancingthe work piece comprising parts operative to engage opposite sides,respecparts operative to engage opposite sides, respecstantially parallel to the work-contacting face of the abutment member, the guide rollbeing disposed closely adjacent to the small end of the work-advancingroller, a non-rotatable supportfor the guide roll extending through thetubular one of said parts being member having two work-contacting facesdisposed in planes substantially perpendicular to each other and thesecond of said parts being a rotatable, work-advancing roller, saidparts being movable toward and from each other permit entry of the work.between them, means urging said parts relatively toward each otherthereby to grip the work between them, the roller being offrusto-conical shape having a peripheral workcontacting surface, thatelement of said peripheral surface which at any time operatively enshaftof the work-advancing roller, said support being slidable axially of thetubular shaft. and a resilient abutment for the support, whereby theguide roll is capable of yielding in response to work pressure.

9. In a shoe working machine, in combination, cooperating partsoperative concomitantly to engage the inner and outer surfacesrespectively of the marginal portion of a shoe upper assembled with asole member upon a last, that one of said cooperating parts whichengages the inner surface of the upper margin having a normallystationary, substantially vertical work-contacting gages thework beingparallel to one of the workcontaeting faces of the stationary abutment,means for rotating the roller, the peripheral face of the work-advancingroller having a helical circumferential rib operative, as the rollerturns to apply stress to the work at a point opposite to said abutmentand in a direction substantially perpendicular to the direction of workadvance, the second work-contacting face of the stationary abutmentbeing constructed and arranged to oppose movement of the work piece as awhole, in response to said stress.

12. A shoe working machine designed to apply 'up-drafting stress to themargin of a shoe upper,

* assembled with a sole member upon a last, said face, said cooperatingparts being relatively movable toward and from one another, means urgingsaid parts toward each other thereby to grip the upper-margin betweenthem, that one of said cooperating parts which engages the outer surfaceof the upper-margin being a downwardly tapering frusto-conical, rollhaving a helical rib on its conical surface, the axis of the roll beingso arranged that the work-engaging portion of the roll is substantiallyparallel to the work-engaging face of the first-named of saidcooperating parts, and means for rotating the roll in a direction suchthat the helical ri-b exerts up-draftin stress on the upper-margin.

10. In a-shoe working machine, in combination, cooperable partsoperative concomitantly to engage the inner and outer surfaces,respectively, of themargin of a shoe upper assembled with a sole memberupon a last and to impart up-drafting stress to the upper whileadvancing the work uninterruptedly, the first of said cooperating partshaving an element engageable with the bottom of the sole member tooppose upward movement of the shoe as a whole, said first part alsohaving a smooth, substantially flat face engageable with the innersurface of the uppermargin, the second of said cooperable parts being arotating, work-advancing roller of frusto-conical shape having aperipheral face engageable with the outer surface of the upper margin,that element of said peripheral face which at any time operativelyengages the work being parallel to the flat face of the first of saidcooperable parts, the peripheral face of the work-advancing rollerhaving a circumferential helical rib designed, as the roller rotates, toexert up-drafting stress upon the upper margin, and means for rotatingthe roller.

11. In apparatuswherein a work piece is advanced uninterruptedly througha working zone, means for advancing the work piece comprising cooperableparts operative concomitantly to engage opposite sides respectively ofthe work piece, the first of said parts being a stationary abutmentmachine comprising means engageable with the bottom surface of the solemember to limit upward movement of the shoe as a whole, a guide elementengageable with the outer surface of the shoe upper, a part engageablewith the inner surface of the upper-margin, and a part engageable withthe outer surface of the upper-margin, said parts being separable toadmit the margin between them, means urging said parts toward each otherso as to grip the margin between them, the part which engages the outersurface of the margin being a frusto-conical, downwardlytaperingrotating roll operative incooperation with the other of saidmargin-gripping parts, to exert upward stress upon the marginalmaterial.

13. In combination in a shoe working machine, an abutment member havinga surface for engagement with the inner surface of the margin of a shoeupper, asssembled with a sole member upon a last, a rotatingwork-advancing roll engageable with the outer surface of theuppermargin, the abutment and roll being separable to. admit themarginal material between them, means urging said abutment and rollrelatively toward each other, thereby to grip the margin, the roll beingfrusto-conical and downwardly tapering'and having that portion of itsperipheral surface which contacts the work substantially parallel tothat part of the abutment member which at any instant contacts thework,,the roll having a ribbed periphery and being operative, incooperation with the abutment, as the work is advanced, to applyup-drafting stress to the upper margin, and means operative to resistupward movement of the shoe as a whole.

14. In apparatus wherein a work piece, of flexible sheet materialmounted upon a form having a substantially fiat bottom surface, isadvanced uninterruptedly through a working zone while stress is beingapplied to the margin of the work piece in a direction away from thebottom surface of the form thereby to draw the work piece snugly aboutthe form, in combination a part disposed to engage the inner surface ofthe margin of the work piece and which is operatively positioned overthe bottom surface of the form, and a cooperating'part which engages theouter surface of the margin of the work piece, said cooperating partsbeing relatively movable to 7 admit the margin of the work piece betweenthem, resilient means urging said cooperating parts relatively towardeach other thereby to grip the marginal material between them, thesecond of said cooperating parts being a frusto-conical, downwardlytapering roll, means for turning the roll, means operative to limitupward movement of the form in response to upward stress exerted by theroll upon the marginal material, and a guide engageable with the outersurface of the work piece at a point substantially in the vertical planeof the bite of said cooperating parts.

15. In a machine of the class described, an

applicator having a substantially vertical work- 'agce'nsar axis, andsupporting means for the work-guiding roll extending axially through-thehollow shaft.

JACOB S. KAMIBORIAN.

REFERENCES CITED 15 The following references are of record in the fileof this patent:-

UNITED STATES PATENTS Number Name Date 20 1,750,709 Eppler Mar. 18, 19302,000,963 Lawson May 14, 1935 2,028,831 Hadaway Jan. 28, 1936 2,314,047Kamborian Mar. 16, 1943

